Drone footage shows the smoldering wreckage in East Palestine, Ohio, after a train carrying toxic materials derailed in the area on February 3.Video captured by the National Transportation Safety Board (NTSB) shows Norfolk Southern Railway tankers still burning on February 5, two days after the incident.On February 6, the railroad conducted a controlled release of the chemicals to avert a possible explosion, the office of Ohio Governor Mike DeWine said, which discharged toxic fumes into the air and toward the Ohio River.On February 8, DeWine told evacuated residents they could safely return to their homes, and pollution posed no threat, but said residents using private wells near the derailment should only use bottled water.The Environmental Protection Agency for the region said a “general notice of potential liability letter” was sent to Norfolk Southern “to document the release of hazardous contaminants” in the area, and cleanup efforts continued.An investigation into the cause of the derailment was ongoing, with preliminary findings expected towards the end of the month, local media reported. Credit: NTSB via Storyful